Basic and Diluted Loss per Common Share - Computation of Basic and Diluted (Loss) Earnings per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended				6 Months Ended
		Jun. 30, 2025	Mar. 31, 2025	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2025	Jun. 30, 2024
Numerator:
Net Income (Loss)		$ 10,020,846	$ (4,217,370)	$ (102,559)	$ (53,118)	$ 5,803,476	$ (155,677)
Dividends on preferred stock		(49,110)		0		(58,347)	0
Net income (loss) attributable to common stockholders of Strategy - Basic		9,971,736		(102,559)		5,745,129	(155,677)
Effect of dilutive shares on net income {loss}:
Net income (loss) - Diluted		$ 9,999,300		$ (102,559)		$ 5,789,949	$ (155,677)
Denominator:
Total weighted average shares of common stock outstanding - Basic		275,244		178,607		265,910	175,326
Effect of dilutive shares on weighted average common shares outstanding:
Total weighted average shares of common stock outstanding - Diluted		306,764		178,607		298,039	175,326
Income (loss) per share:
Basic income (loss) per share	[1]	$ 36.23		$ (0.57)		$ 21.61	$ (0.89)
Diluted income (loss) per share (1)	[1]	$ 32.6		$ (0.57)		$ 19.43	$ (0.89)
Employee Stock Option
Effect of dilutive shares on weighted average common shares outstanding:
Total weighted average shares of common stock outstanding - Diluted		3,615		0		3,847	0
RSU
Effect of dilutive shares on weighted average common shares outstanding:
Total weighted average shares of common stock outstanding - Diluted		5		0		495	0
Performance stock units
Effect of dilutive shares on weighted average common shares outstanding:
Total weighted average shares of common stock outstanding - Diluted		494		0		511	0
Employee Stock Purchase Plan
Effect of dilutive shares on weighted average common shares outstanding:
Total weighted average shares of common stock outstanding - Diluted		3		0		2	0
2027 Convertible Notes
Effect of dilutive shares on net income {loss}:
Interest expense, net of tax		$ 0		$ 0		$ 286	$ 0
Effect of dilutive shares on weighted average common shares outstanding:
Total weighted average shares of common stock outstanding - Diluted		0		0		1,439	0
2028 Convertible Notes
Effect of dilutive shares on net income {loss}:
Interest expense, net of tax		$ 1,887		$ 0		$ 3,755	$ 0
Effect of dilutive shares on weighted average common shares outstanding:
Total weighted average shares of common stock outstanding - Diluted		5,513		0		5,513	0
2029 Convertible Notes
Effect of dilutive shares on net income {loss}:
Interest expense, net of tax		$ 1,308		$ 0		$ 2,603	$ 0
Effect of dilutive shares on weighted average common shares outstanding:
Total weighted average shares of common stock outstanding - Diluted		4,462		0		4,462	0
2030A Convertible Notes
Effect of dilutive shares on net income {loss}:
Interest expense, net of tax		$ 1,606		$ 0		$ 3,194	$ 0
Effect of dilutive shares on weighted average common shares outstanding:
Total weighted average shares of common stock outstanding - Diluted		5,342		0		5,342	0
2030B Convertible Notes
Effect of dilutive shares on net income {loss}:
Interest expense, net of tax		$ 898		$ 0		$ 1,264	$ 0
Effect of dilutive shares on weighted average common shares outstanding:
Total weighted average shares of common stock outstanding - Diluted		4,614		0		3,307	0
2031 Convertible Notes
Effect of dilutive shares on net income {loss}:
Interest expense, net of tax		$ 1,390		$ 0		$ 2,767	$ 0
Effect of dilutive shares on weighted average common shares outstanding:
Total weighted average shares of common stock outstanding - Diluted		2,594		0		2,594	0
2032 Convertible Notes
Effect of dilutive shares on net income {loss}:
Interest expense, net of tax		$ 3,718		$ 0		$ 7,400	$ 0
Effect of dilutive shares on weighted average common shares outstanding:
Total weighted average shares of common stock outstanding - Diluted		3,915		0		3,915	0
Class A
Denominator:
Total weighted average shares of common stock outstanding - Basic		255,604		158,967		246,270	155,686
Class B
Denominator:
Total weighted average shares of common stock outstanding - Basic		19,640		19,640		19,640	19,640
Convertible preferred stock
Effect of dilutive shares on weighted average common shares outstanding:
Total weighted average shares of common stock outstanding - Diluted		963		0		702	0
STRK Stock
Effect of dilutive shares on net income {loss}:
Dividends on STRK Stock		$ 16,756		$ 0		$ 23,550	$ 0

[1] Basic and fully diluted earnings per common share for class A and class B common stock are the same.